First, thank you for sharing your experiences regarding therapy. Not all therapy is good therapy, and sadly not all therapists have the ability or training to adequately treat or excel in treating stuttering. And, I think this perpetuates a lot of misconceptions about the stuttering condition. You saying that you experience periods of easier talking and not so easy talking is completely normal. Learning to deal with that is tough, and I would argue most of what "good" therapy targets. But, you recognizing that I think is a step in the right direction, in my opinion.